Lubricator



Dec. 4, 1934. A, WESTBURGH LUBRICA'TOR arm 0014M, ART HU'R E WES'IBURGH,

Filed July 10,

' with a lubricator constructed Patented Dec. 4, 1934 1,983,504 wnmc rroa Westburgh, Jamestown, N. Y., assignor to Edward R. Haglund, Jamestown, N. Y.

Application July 10, 1933, Serial No. 679,768

15 Claims.

This invention relates to an automatic lubricator and the novel .features insure maximum dependability and'durability, flow of theoilin V the correct quantity without gurgling and dan- 5 ger of foreign matter entering the oil or lubricant, and accessibility of the tion and cleaning.

.A prime object is to provide a construction having a reservoir which may be readily displaced or tilted, without requiring detachment, for inspection or observation of the flow of lubricant.

Another aim is .to provide novel adjustable valve means for the reservoir. held openby and under control of novel closure meansfor the reservoir. i i

A further important'feature isto provide a novel conduit for the feedof the .oilfromrthe reservoir to the cup constituting the attaching connection between the reservoir and pivoted closure of the oil cup. A removable strainer and a sediment sump within the reservoir coact with the conduit andthe latter has a pluralityof outparts for inspeclet passages terminating at difierent elevations within the oil cup to guard against gurgling of the oil and maintain a constant level of oil withinthecup.. x The more specific objects and advantages will become apparent from a consideration of'the de- 1 scriptionfollowing taken inconnection with accompanying drawing illustrating an j operative embodiment. i l 1 In said drawing: r I Fig. 1 is an elevation of a motor equipped in accordance with the invention; I r i 1 Fig. 2 is anelevation of thelubricator alone, partly broken away to disclose details; ..,'Fig. 3 is an elevation of the lubricator alone itaken'at 90 to Fig. 2; r i a Fig. 4 is a plan View of the lubricator, partly broken away to disclose a detail construction;

Fig. 5 is a central, vertical sectional view.

through the lubricator taken on the line 5--5 of Fig.*4; T 1 v r p Fig. 6"is a planview of the reservoir with the closure 'and bailremoved;

v Fig. "lis an elevation of the lubricator from the same side as Fig. 3 but showing the reser- 50 l voirjin tilted position; I

' Fig. 8 is a "central'vertical sectional view throughthe conduity I V "Fig. 9 is a side .elevationbf the cylindrical 'strainery 11 Figblb is afragmentarysideelevation of the lubricator, reverse to Fig. 2, primarily showing I the hinge connection of the reservoir to the cup, and

Fig. 11 is a detail longitudinal sectional view through one of the outlet valves.

Referring specifically to the drawing wherein like reference characters designate like or corresponding parts, 10' designates an oil cup adapted for attachment to any desired part re-' quiring lubrication, and for example, it isshown in Fig. 1 as connected to the bearing housing 11' of an electric motor 12, to lubricate the bearing and shaft 13 of the latter. Such oil cup may be secured in place by means of a screw threaded nipple 14, having an oil outlet; passage 15 therethrough, .or in any other desiredmanner. The chamber of said oil cup is normally covered by a closure plate 16 having an opening movement so-that the chamber may be inspected, the feed of'oil observed and sediment removed. Preferably said closui'e 16 and cup 10 have ea'rs at 1'7 and 18, respectively, pivotally connected by a pintle 19 about which a coil spring 20 is disposed with one end abutting the closure and the other end'abutting the reservoir, thus furnishin'g-a spring hinge constantly urging the-closure 16 to closed position.

Said closure 16 carries an 011 reservoir 21,

preferably metallic, having a glass or other transparent window 22 secured over a sight opening 23 in any suitable manner as by means of clips and'leak-proofing cement at 24.

A central threaded opening 25 is provided in the bottom of reservoir 21 and a conduit member 26, by means of external screw threads 2'7, is screwed thereinto. Such threads 27 also engage those in a central screw threaded opening 28in the closure 16, whereby the conduit constitutes a connecting means between the ,reservoir' and oil cup. Lock nuts 29,- preferably externally knurled, engage the threads 27 below the closure Reverting to the conduit 26, it preferably has a plurality of bores or passages 30 for travel of the oil from the reservoir to the oil cup and in each passage, a valve 31 of any preferred construction is disposed. As shown bestin Fig. 11, each valve may have a casing 32 removably screw threaded at 33 in the upper ends of such passages. Sli'dable in spiders 3a in such passages are valve stems 35 carrying heads 36 at their lib spiders 34 and engaging abutments 38 at the upper ends of the stems.

The aforesaid reservoir 21 has a removable closure 39 consisting of a cover member 40, a gasket 41 and a disk 42 secured rigidly together by a press-fitted rivet end 43 of a stud 44. Gasket 41 is usually of rubber, leather or the like and rests on the upper edge of the reservoir while disk 42 extends into the latter. A controller 45 to determine the extent of opening of the valves 31 and to maintain them open in operation, engages abutments 38 and has" ,a shank 46 screw threaded at 47 in the stud 44.

The extent of opening of the valves is controlled through the adjustment of said controller and the latter is held in adjusted positions against accidental slippage by the frictional pressure of a spring finger 48 against its threads, such finger being of spring metal and mounted by insertion through an opening 49 in the stud and upsetting of a terminal 49' of the finger.

Attention is called to the fact that the lower end of conduit 26 is bevelled or chamfered at '50 as a result of which the lower end of one oil passage 30 is below that of the other. The oil level in the cup is maintained constant and as high as the outlet of the other passage, air enters from the cup through the shorter passage, resulting in the flow of the oil into the cup 10 without gurgling. Said chamfer 50 is for the second purpose of enabling the conduit 26 to extend as low as practical in the oil cup and yet be capable of swinging out of the same when the closure 16 and reservoir 21 are swun as shown in Fig. 7.

A resilient bail 51- clamps the closure 39 on the reservoir, having terminals 52 removably pivoted in recesses 53 in the sides of the reservoir, a handle 54, hold-down portions 55 and gathered portions 56 to facilitate expansion and contraction. Said portions 55 are adapted to snap into depressions'57of a pair of cam ribs 53 on the cover member 40. s I j To insure proper positioning of the closure 39 preparatory to clamping movement of the bail to engage the same, cover member 42 has a recess 58 adapted to receive a lug 5.9 at the upper inner edge of the reservoir, and cover 39 has a lug 60 to align with the sight opening 23.

A cylindrical open-ended oil strainer 61 of metallic wire screen for example, is removably partly telescoped over a reduced upper end of conduit 26 resting one shoulder 62 thereof and extending into a recess or sump 63 in the bottom wall of the reservoir which accommodates the L sediment.

Normally oil is maintained in the cup v10 to a level equal to that of the upper portion of the discharge end of passage 30 at chamfer 50 and when it recedes through use below that level,

3 air enters through such passage from the oil cup'and oil again flows into the cup to the said predetermined level. The flow is also under control of the adjustable valves 31 and when closure 39 is removed, such valves automatically close under action of their springs 37, thus being closed "during the filling of the reservoir. The reservoir may be tilted when desired for cleaning or inspection, especially to check up on the correct flow of oil through the passages, as

- shown in Fig. 7. All of the parts within the reservoir are accessible for ready inspection and cleani upon lower n of bail 5i; nd emoval. of closure 39. The strainer 61 is readily slippedofi of reduced portion 62 for cleaning and the sump 63 aids in draining sediment from the screen and permitting removal thereof.

Various changes may be resorted to provided they fall within the spirit and scope of the invention.

I claim as my invention:

1. A lubricator having a cup, a closure pivoted thereon for movement to an open position, a valved Iconduit screw-threaded to the closure and communicating with the cup, a reservoir screw-threaded on the conduit to supply lubricant therethrough and filling means for the reservoir independently of said conduit. 2. A lubricator having a cup, a closure thereon pivoted for movement to an open position, a conduit connected to the closure having two passages communicating with the cup, and a reservoir carried by the conduit to supply lubricant therethrough, one of said passages terminating below the other passage.

3. A lubricator according to claim 2 wherein said conduit extends below the closure and has a chamfer across the lower extremity of one passage enabling the conduit to be swung out of the cup.

4. A lubricator having a cup, a closure piv.- oted thereon, a reservoir, a conduit member at-.- taching the reservoir to the closure and extending below the same into the cup, the lower .end of said member having a chamfered portion enabling the member to be swung out of the cup, said chamfered portion extending across a passageway through the .conduit.

5. A lubricator having a cup, a closure pivoted thereon, a conduit having two passages therethrough, screw threaded to the closure and extending below the same, said conduit having a chamfer across one of said passages arranging the outlet of one passage below that of the other and enabling the conduit to be swung with the closure to the exterior of the cup, a reservoir threaded on the conduit, outlet valve means for said passages, one of the passages constituting a vent, a closure-for the reservoir, means to secure the closure in .closed position, and a controller carried'by the closure and engaging the valve means to maintain the latter open when the reservoir is closed.

6. A lubricator according to claim 5 wherein the upper endof .the conduit is reduced and thev reservoir bottom has a sump about the same, and a cylindrical strainer telescoped over. said reduced portion and extending into the sump.

'7. A lubricator having a cup, a 'reserevoir, means-pivoting the reservoir on the cup for movement to an open position, conduit means exposed at its lower end through-the. said movement provided with two passages communicating with the cup and leading from said reservoir, valve means for said passages, closure means for the reservoir normally maintaining said valves open, and means to close the valves upon displacement of said closuremeans.

8. A lubricator having a cup, a closure pivoted on said cup movable to an open position to expose theinterior. of the cup, a reservoiron said closure movable therewith, conduit means f r th p ssag f lu ricant rom sa d reservoir to id our a h n th s rvoir d rect y t said closure and extending beyond the closure n t u s id. reservoir hav g a filli opening independently of said conduit me ans,,a closure for said filling opening, valve means zfor the conduit means completely above the lower end of the conduit means, means to urgelthe Ill) valve means to position closing said conduit means against the entrance and discharge of lubricant, and means carried by said closure functioning in the closed position of the latter to maintain said valve means open.

9. A lubricator having a cup, a closure pivoted thereon for movement to an open position, a conduit having external screw threads engaging the closure, a reservoir attached to said screw threads, valve means in the conduit to control the passage of lubricant from the reservoir through the conduit, and filling means for the-reservoir independently of the conduit.

10. A lubricatorhaving a reservoir, an outlet conduit extending therefrom for attachment to meansto be lubricated, an outlet valvefor said conduit normally urged toward closed position, said conduit having a reduced portion at its upper end, the bottom of said reservoir having a sump about said reduced portion, -a screen of cylindrical form telescoped about said reduced portion and extending into controller carried by the closure and engaging the valve in' the closed position of the closure to maintain the valve open.

11. A lubricator having a reservoir, an outlet conduit member in direct communication with the interior of the reservoir and extending therefrom, outlet valve means in the conduit of said conduit member, said valve means in closed position completely preventing discharge through said conduit, a closure for the reservoir controlling the opening and closing of said valve means, means for attachment to a device to be lubricated, and said last mentioned means mounting the reservoir and conduit memberfor movement to a position to observe the discharge end of the conduit. Y

12. A lubricator according to claim ll wherein said closure carries a part to directly control the opening and closing of said valve means, and means adjustably securing said parton the closure.

13. A lubricator having a reservoir, an outlet conduit member in direct communication with the sump, and a.

the interior of the reservoir and extending therefrom for attachment to means to be lubricated, an outlet valve in the conduit of said conduit member and normally urged to closed position, said outlet valve completely preventing discharge through said conduit in closed position, a 010- sure plate for the reservoir, a controller memher, said controller member engaging the valve in the closed position of the closure plate to maintain the valve open, a disk of less diameter than the closure plate, a gasket between the closure plate and disk, a fastening means passing through the closure plate, gasket and disk, and said'fastening means having screw threads engaged by the controller member.

14. A lubricator having a reservoir, an outlet conduit member in direct communication with the interior of the reservoir and extending therefrom for attachment to means to be lubricated, an outlet valve in the conduit of said conduit member and normally urged to closed position, said outlet valve completely preventing discharge through said conduit in closed position, a closure means for the reservoir, a controller member, means adjustably securing the controller member to the closure means, said controller member engaging the valve in the closed position of the closure means to maintain the valve open, said conduit member having a reduced portion at its upper end, said reservoir having a bottom provided with a sump about said reduced portion, and a screen of cylindrical form telescoped about said reduced portion and extending into the sump.

15. A lubricator having a reservoir, a closure plate resting on the upper edge thereof, a disk extending into the reservoir, a gasket between the plate and disk engaging said edge, outlet means for the reservoir including a valve, securing means extending through said plate, gasket and disk, and a control member governing the extent of opening of said valve, said control member being mounted by the securing means.,

ARTHUR E. WESTBURGH. 

